Index: src/GenPoly/Box.cc
===================================================================
--- src/GenPoly/Box.cc	(revision cce78728a16ef55d6ed053083f6cde7174722459)
+++ src/GenPoly/Box.cc	(revision bed4d37ced0432647ca13a9e766257d80ac0d9d6)
@@ -1344,5 +1344,6 @@
 
 				if ( DeclarationWithType *declWithType = dynamic_cast< DeclarationWithType* >( *decl ) ) {
-					if ( memberDecl->get_mangleName() == declWithType->get_mangleName() ) return i;
+					if ( memberDecl->get_mangleName().empty() || declWithType->get_mangleName().empty()
+					     || memberDecl->get_mangleName() == declWithType->get_mangleName() ) return i;
 					else continue;
 				} else return i;